Home / 18,429.21-27,640.97-6,739.70

Finding the Fourth Proportional to 18,429.21, 27,640.97 and 6,739.70

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Solution

The fourth proportional to 18,429.21, 27,640.97 and 6,739.70 is: 10,108.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,429.21 : 27,640.97 = 6,739.70 : x
  2. Step 2: Convert to fraction form
    18,429.21/27,640.97 = 6,739.70/x
  3. Step 3: Cross multiply
    18,429.21x = 27,640.97 × 6,739.70
  4. Step 4: Simplify right side
    18,429.21x = 186,291,673.61
  5. Step 5: Solve for x
    x = 186,291,673.61/18,429.21
  6. Step 6: Final answer
    x = 10,108.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.